Primary Navigation

Re: [wsjtgroup] GB3CSB Beacon Reports

... Strangely, after the first couple of days of monitoring the beacon when I decoded quite a few signals from GB3CSB, the number of decodes that I am getting

Message 1 of 10
, Jan 1, 2010

0 Attachment

Dave Ackrill wrote:

> Some early results of reception reports for the new beacon here as follows

Strangely, after the first couple of days of monitoring the beacon when
I decoded quite a few signals from GB3CSB, the number of decodes that I
am getting has reduced to almost zero.

I do see the CW/tone on the odd minutes and occasional traces of the 4
JT4g tones, but very rarely does WSJT manage to decode anything.

There is the problem of reflections from aircraft, of course, but it is
frustrating to see a nice strong line on the odd minute but then nothing
decoded during the JT4g period of transmission.

Another strange effect, as well as the 'Wrong Mode' decodes due to
reflections, was this one
110000 1 -28 2.5 311 90 # 0M6SQG 4O2JVL PF31 OOO 1 0
which is obviously marked with a # but is very weird as I don't use Deep
Search at all...

Other people report hearing the beacon stronger, audibly, than I do, so
it could be a combination of my location and the need to improve the
reception side of my 23cm station I guess?

Dave (G0DJA)

Dave Ackrill

I m trying to use the Dsec adjustment to allow for the 2.4 second DT offset until the weather improves and the beacon keeper gets the chance to alter the

Message 2 of 10
, Jan 2, 2010

0 Attachment

I'm trying to use the Dsec adjustment to allow for the 2.4 second DT
offset until the weather improves and the beacon keeper gets the chance
to alter the transmit timing.

So, if the received DT is +2.4 seconds, do I set Dset to -2.5 or +2.5?

This will also help me if I see people with little, or no, computer
clock checking as well, of course.

Thanks - Dave (G0DJA)

Dave Ackrill

... I think I may have figured it out... I set +2.5 on Dsec and received the following decode 133757 4 -23 4.9 7 0 * GB3CSB IO75XX 1

Message 3 of 10
, Jan 2, 2010

0 Attachment

Dave Ackrill wrote:

> So, if the received DT is +2.4 seconds, do I set Dset to -2.5 or +2.5?

I think I may have figured it out...

I set +2.5 on Dsec and received the following decode
133757 4 -23 4.9 7 0 * GB3CSB IO75XX 1 0

Which suggests I should set -2.5 instead.

I'll give that a go for a while and see what happens.

Dave (G0DJA)

Dave Ackrill

... For anyone else wanting to do the same, I ve found that a Dsec setting of -1.5 seems to work the best for me, although conditions on 23cm have been pretty

Message 4 of 10
, Jan 2, 2010

0 Attachment

Dave Ackrill wrote:

>> So, if the received DT is +2.4 seconds, do I set Dset to -2.5 or +2.5?
>
> I think I may have figured it out...

For anyone else wanting to do the same, I've found that a Dsec setting
of -1.5 seems to work the best for me, although conditions on 23cm have
been pretty dire all day.

Managed to capture this a while ago.

155401 7 -21 0.9 7 20 * GB3CSB IO75XX 1 0

Which seems close enough for now.

Dave (G0DJA)

Your message has been successfully submitted and would be delivered to recipients shortly.